Exercise device



FIG. 1 is a perspective view for an exercise device;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof view;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The parts delineated in dashed lines are for illustrating unclaimed portions of the Invention and form no part of the claimed design. 

CLAIM The ornamental design for an exercise device, as shown and described. 